Dynamic changes of nitrogen forms in livestock manure during composting and relevant evaluation indices of compost maturity
In this paper, the dynamic changes of nitrogen (N) forms in different livestock manures were investigated during composting, and the relevant N evaluation indices of compost maturity were approached. The results indicated that during composting, the total nitrogen (TN) concentration in dairy cattle manure increased first and became steady then, but in other five test manures, it decreased first and became steady then. For all test manures, their hydrolizable nitrogen (HN) decreased after an initial increase, NH4(+)-N decreased first and became steady then, while NO3(-)-N had a persistent increase. Among the N indices of compost maturity, HN/TN and NH4(+)-N/TN could be selected as the adaptable parameters to evaluate the maturity, while NO3(-)-N/TN could be only used as a universal one. According to the required standard of compost maturity based on the comprehensive index GI (seed germination index), i.e., GI > 0.50, it was suggested that for the livestock manures except young pig manure, the basic requirements of their compost maturity were HN/TN < 20.77%, NH4(+)-N/TN < 10.06%, and NO3(-)-N/TN > 0.38%.
| Medienart: |
Artikel |
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| Erscheinungsjahr: |
2008 |
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| Erschienen: |
2008 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:19 |
|---|---|
| Enthalten in: |
Ying yong sheng tai xue bao = The journal of applied ecology - 19(2008), 2 vom: 31. Feb., Seite 374-80 |
| Sprache: |
Chinesisch |
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| Beteiligte Personen: |
Bao, Yan-Yu [VerfasserIn] |
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| Themen: |
English Abstract |
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| Anmerkungen: |
Date Completed 31.10.2008 Date Revised 18.10.2016 published: Print Citation Status MEDLINE |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
NLM179424513 |
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| 041 | |a chi | ||
| 100 | 1 | |a Bao, Yan-Yu |e verfasserin |4 aut | |
| 245 | 1 | 0 | |a Dynamic changes of nitrogen forms in livestock manure during composting and relevant evaluation indices of compost maturity |
| 264 | 1 | |c 2008 | |
| 336 | |a Text |b txt |2 rdacontent | ||
| 337 | |a ohne Hilfsmittel zu benutzen |b n |2 rdamedia | ||
| 338 | |a Band |b nc |2 rdacarrier | ||
| 500 | |a Date Completed 31.10.2008 | ||
| 500 | |a Date Revised 18.10.2016 | ||
| 500 | |a published: Print | ||
| 500 | |a Citation Status MEDLINE | ||
| 520 | |a In this paper, the dynamic changes of nitrogen (N) forms in different livestock manures were investigated during composting, and the relevant N evaluation indices of compost maturity were approached. The results indicated that during composting, the total nitrogen (TN) concentration in dairy cattle manure increased first and became steady then, but in other five test manures, it decreased first and became steady then. For all test manures, their hydrolizable nitrogen (HN) decreased after an initial increase, NH4(+)-N decreased first and became steady then, while NO3(-)-N had a persistent increase. Among the N indices of compost maturity, HN/TN and NH4(+)-N/TN could be selected as the adaptable parameters to evaluate the maturity, while NO3(-)-N/TN could be only used as a universal one. According to the required standard of compost maturity based on the comprehensive index GI (seed germination index), i.e., GI > 0.50, it was suggested that for the livestock manures except young pig manure, the basic requirements of their compost maturity were HN/TN < 20.77%, NH4(+)-N/TN < 10.06%, and NO3(-)-N/TN > 0.38% | ||
| 650 | 4 | |a English Abstract | |
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a Research Support, Non-U.S. Gov't | |
| 650 | 7 | |a Manure |2 NLM | |
| 650 | 7 | |a Quaternary Ammonium Compounds |2 NLM | |
| 650 | 7 | |a Nitrogen |2 NLM | |
| 650 | 7 | |a N762921K75 |2 NLM | |
| 700 | 1 | |a Zhou, Qi-Xing |e verfasserin |4 aut | |
| 700 | 1 | |a Yan, Li |e verfasserin |4 aut | |
| 700 | 1 | |a Guan, Lian-Zhu |e verfasserin |4 aut | |
| 773 | 0 | 8 | |i Enthalten in |t Ying yong sheng tai xue bao = The journal of applied ecology |d 1998 |g 19(2008), 2 vom: 31. Feb., Seite 374-80 |w (DE-627)NLM093687095 |x 1001-9332 |7 nnns |
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